Abstract

Chromosome studies along with heterochromatin distribution pattern analysis have been carried out in two domesticated species of Vigna Savi, 1824 which grow in contrasting geo-climatic conditions of India: Vigna umbellata Thunberg, 1969, a legume well acclimatized to subtropical hilly regions of North-east India and V. aconitifolia Jacquin, 1969, a species of arid and semi-arid regions in desert plains of Western India. Karyo-morphological studies in both species reveal 2n = 22 chromosomes without any evidence of numerical variation and the overall karyotype symmetry in chromosome morphology suggest that the diversification at intraspecific level in genus Vigna has occurred through structural alteration of chromosomes, rather than numerical changes. Heterochromatin distribution as revealed by fluorochrome binding pattern using CMA3 and DAPI, confirms the occurrence of relatively more GC content in V. aconitifolia as compared to V. umbellata. However, AT content was found to be comparatively higher in V. umbellata which perhaps play a role in species interrelationships.

Addeddate

2025-03-16 13:20:06

Bhl_virtual_titleid

210879

Bhl_virtual_volume

v.9:no.1 (2015)

Call number

10_3897_CompCytogen_v9i1_9012

Call-number

10_3897_CompCytogen_v9i1_9012

Foldoutcount

0

Genre

article

Identifier

heterochromatin9rama

Identifier-ark

ark:/13960/s27sztwp8m4

Identifier-bib

10_3897_CompCytogen_v9i1_9012

Identifier-doi

10.3897/CompCytogen.v9i1.9012

Issue

1

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

86

Page_number_module_version

1.0.5

Page_range

119-132

Pages

14

Pdf_degraded

invalid-jp2-headers

Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

Comparative Cytogenetics 9(1)

Year

2015

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